Connecting material solutions to xEV battery challenges.

This is flexibility: our electrically insulating resins can meet a wide range of specific requirements including dielectric strength, adhesion to specific substrates and resistance to high temperatures. For complete and consistent coverage, our fusion-bonded resins are electrostatically applied and rapid heat-cured to form tough, durable coatings in places where tapes may not reach on EV battery casings. Resins are thermally cured and applied prior to assembly of the cell.

Our range of SSITs far exceed the bond strength of standard PSAs. Our latest film tapes with UV-initiated adhesive are excellent for cell isolation as they do not require heat or pressure for cure. They can be incorporated into existing PSA assembly processes with relatively minor modifications. They can be used along with thermal set tapes for module walls and pack lining, and in place of them for cooling plate applications. We’ll work with you to build the right solution within your assembly process.

For your designs, you can choose from a wide range of 3M™ Flexible Insulation solutions that help address extremely high temperatures during thermal runaway propagation events. These solutions also provide dielectric strength. For what’s upcoming, we are happy to collaborate with you - developing and testing materials that protect against pressure, grit, adhesive failures and a host of other conditions likely to occur in tomorrow’s high-voltage and high-energy-density xEV batteries.

Lithium-ion battery packs will decrease in size and weight, yet voltage and energy density will increase to meet new targets for power, range, and fast-charging. What options does the industry have to maintain sufficient electrical isolation for battery cells? Find out about the existing and new avenues in electrical isolation 3M has been testing and developing.

As part of a holistic approach to xEV battery solutions, we believe that resistance to flame and heat is just part of the testing landscape. At 3M we study what truly happens during a thermal event: compression, particulates, shear, dielectric strength and more. Learn how our material-level testing methods and application screening tools can help your battery cell designs.

At 3M, the cell is just the start. We are always testing and producing new solutions for xEV batteries - thermal interface materials, battery sealants, structural adhesives, cushioning materials, adhesive tapes and others, from the cell to the module, the pack, the vehicle and finally the road. Check out what we have for xEV batteries, today and for the future.